IMPORTANT
Do not disassemble or repair the machine yourself
If you disassemble or repair the machine yourself, it may not be covered by warranty.
Customer Support (U.S.A.)
If you cannot solve a problem by referring to the information in this chapter, contact the Canon Customer Care Center at 1-800-OK-CANON, Monday through Friday, between 10:00 A.M. and 6:30 P.M. EST excluding holidays.
On-line support is available 24 hours a day at http://www.canontechsupport.com.
*Available support options are subject to change without notice.
When Contacting Canon
When contacting us, have the following information ready:
Product name (MF449dw / MF448dw / MF445dw)
Dealer where you purchased the machine
Details about your problem (such as what you did and what happened as a result)
Serial number (found on the label on the back side of the machine)
NOTE
Checking the serial number from the operation panel
Select <Status Monitor> 
<Device Information> <Serial Number>.
